Answer:
Differences in life expectancy (gender differences)
Explanation:
Many of the social psychologists perceived that there a lot of differences between a woman and a man. Even communication also varies between both genders. Men and women both are different in their roles such as physiological roles, biological roles, etc.
It is a controversial question among communities. The personality study can reveal the differences between males and females. Both have their different traits and qualities to deal with the situation and life. Gender identity will also be different. So traits tell about the life expectancy between male and females compatibility to live together at the end of life.